Hello , i had wi-fi randomly resetting (very annoying) so i decided to upgrade the current firmware (r38159) to a newer 44715 of my WRT1900ACS v1.
While upgrading, it stopped at 80% with an error , now the power lights comes up (5 blinks) , esata lights up (3 seconds) and restarts (continuous loop).
Got putty and tftpd ready , but doesn't let me get into it .
Looks dead .
You either have to do the power-cycle trick as advised to boot to the other partition and re-flash current release
or use serial to de-brick if that doesn't work. What browser were you using to flash?
Another nugget of info for recovery (timing is everything):
New Build - 11/21/2020 - r44849 _________________ "The woods are lovely, dark and deep,
But I have promises to keep,
And miles to go before I sleep,
And miles to go before I sleep." - Robert Frost
"I am one of the noticeable ones - notice me" - Dale Frances McKenzie Bozzio
There is a triple power toggle failover method to force switch the boot partition.
It is a pain sometimes to find correct timing, so here are alternate descriptions.
Power ON and when LAN LED is blinking immediately turn it OFF then wait at least three seconds, repeat.
Then power it on a third time and let it run.
Another visual cue is power LED blinks a few times then turns off for about 2 seconds, switch power OFF.
Joined: 08 May 2018 Posts: 14125 Location: Texas, USA
Posted: Thu Jul 21, 2022 1:21 Post subject:
You can copy all the PuTTY output (right click on window title bar...) and paste it to a text file attachment or body of a post, for future reference. Anyhow, you have to break boot to run any recovery commands from u-boot on these devices, which it sounds like you're not doing. If you're too overwhelmed, I(we) still sometimes offer services to those who are geographically close enough. Otherwise, if you just wish to give up and throw in the towel, I can always use more test devices since all but one of my Marvells which runs OpenWRT are no longer in hand for testing anymore. _________________ "Life is but a fleeting moment, a vapor that vanishes quickly; All is vanity"
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Linux User #377467 counter.li.org / linuxcounter.net
That looks like possible results of a bad / corrupted / interrupted flash of sorts, but hopefully no hardware failure. Were you flashing over wifi or wired ethernet? I see nothing in the forum about 44715 bricking anyone's router in the Marvell sub-forum. Breaking boot can be a timing issue. You could try continuously tapping the spacebar like you're playing Space Invaders at the arcade while powering up, but it looks as if there is an auto recovery process going? I even searched to see if 38159 webUI upgrade was broken and came up short, so this is an interesting anomaly to mysteriously uncover itself. _________________ "The woods are lovely, dark and deep,
But I have promises to keep,
And miles to go before I sleep,
And miles to go before I sleep." - Robert Frost
"I am one of the noticeable ones - notice me" - Dale Frances McKenzie Bozzio
Maybe use a different USB to TTL serial adapter. I have this: DTECH FT232RL 3.3v 3 pin (Amazon, eBay).
Other common chips than FTDI: the drivers SiLabs CP2102 and Prolific PL2303 series (Windows, macOS).
Something else to check than driver: COM port settings, speed or baud rate bits per second 115200 8N1.
WRT1900ACS v1 header pins are small so check TX/RX/GROUND connectors make contact with each pin.
From the jj.txt log "Hit any key to stop autoboot: 0" so this three second time window has already passed.
"Some USB to TTL serial adapters need to connect TX/RX/GROUND, usually ground, after power on."
However, at this point it would be even more timing critical to interrupt u-boot after ground connect.
If all has been checked try ground. Maybe check USB to TTL adapter poor factory soldering of wires.
Joined: 08 May 2018 Posts: 14125 Location: Texas, USA
Posted: Fri Jul 22, 2022 14:48 Post subject:
blkt wrote:
"Some USB to TTL serial adapters need to connect TX/RX/GROUND, usually ground, after power on."
This is specific to Broadcom Northstar SoCs as well as possibly TP-Link Atheros SoC boards in my experience. I have never had this issue with any Marvells in hand, whatsoever. I also have the pitch adapter for the UART header on these, which is a BIG help. _________________ "Life is but a fleeting moment, a vapor that vanishes quickly; All is vanity"
Contribute To DD-WRT Pogo - A minimal level of ability is expected and needed... DD-WRT Releases 2023 (PolitePol)
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Linux User #377467 counter.li.org / linuxcounter.net
Note for WRT1900 ACS V1 users:
Base on this link and forum member dertester123: https://community.linksys.com/t5/Wireless-Routers/wrt1900acs-brick-and-not-connect-serial/td-p/982681/page/4, there is a glitch with V1 in that you need to first turn on the router before connecting the RX/TX/Ground pins to the router's serial port. Once the router is turned on, in 3-5 seconds, insert the pins to the serial port and hit the key to prevent a boot.
Leaning towards USB to TTL itself or combination of USB to TTL and WRT PCB, but not WRT PCB itself.
But anyway most people can do without pin adapter. If you know of a cheaper one...(Amazon, eBay)
Last edited by blkt on Sun Jul 31, 2022 2:25; edited 3 times in total
I don't have sound hooked up on this workstation, but I didn't visually see any evidence of the need to use the workaround, but not sure which router it was performed on:
And as in a lot of cases, one or two peple had an issue and a workaround was noted as a solution, but not necessarily required - if anything, power up and connect ground or whichever lead if you have enough hands. It is sometimes dependent on which adapter you use and if it is truly level-shifting as well as driver and PuTTY configuration issues. I've had this same exact router come across the bench more than once. There's enough misinformation on the internet if you look hard enough. I have notes and documentation in a binder and completed work orders both in digital and paper format for about a dozen of these. If you have no proof of your own experience, posting links all day long is not fact. _________________ "Life is but a fleeting moment, a vapor that vanishes quickly; All is vanity"
Contribute To DD-WRT Pogo - A minimal level of ability is expected and needed... DD-WRT Releases 2023 (PolitePol)
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Linux User #377467 counter.li.org / linuxcounter.net